Add presentation upload and management features to room functionality

server/index.js

@@ -30,6 +30,10 @@ async function start() {
   await initDatabase();
   initMailer();
 
+  // Serve uploaded files (avatars, presentations)
+  const uploadsPath = path.join(__dirname, '..', 'uploads');
+  app.use('/uploads', express.static(uploadsPath));
+
   // API Routes
   app.use('/api/auth', authRoutes);
   app.use('/api/rooms', roomRoutes);